@teo_audio
Bass reflex is not always adding distortion.
On extremely large cabinets with specific heavy duty woofers the reflex port can be used not to extend LF response but to enhance linearity and increase SPL capability.
It is true that the majority of bass reflex is used to make a small box sound bigger and this is a pursuit of quantity at the expense of quality
https://m.youtube.com/watch?v=5myKfuIAXmY
Bass reflex is not always adding distortion.
On extremely large cabinets with specific heavy duty woofers the reflex port can be used not to extend LF response but to enhance linearity and increase SPL capability.
It is true that the majority of bass reflex is used to make a small box sound bigger and this is a pursuit of quantity at the expense of quality
https://m.youtube.com/watch?v=5myKfuIAXmY